The effect of temperature, humidity and incident UV light on the photocatalytic activity of two TiO2filmswith different microstructures (dense and mesoporous) was explored in terms of stearic acid degradation.Previous works reported in the literature suggest that the activity of TiO2films does not only depend onsingle factors but also on interactions between them. Hence, the design of experiments (DoE) approachwas used in this work to plan the experiments in a systematic way, simultaneously considering severalvariables. This approach provided an efficient working strategy to explore both individual and interactioneffects on the photocatalytic activity of the films. The statistical evidence found here revealed that singlefactors temperature and mesoporous microstructure have the strongest positive effect on the efficiencyof the films. In the case of temperature, this was explained by easier degradation and/or desorption ofreaction intermediates. On the other hand, the positive effect of the mesoporous microstructure wascorrelated with its large surface area. An interaction factor between temperature and incident UV lightalso affects the activity of the films. Results suggest that this phenomenon depends of the degree of filmhydration before the deposition of SA.

Evaluation of the correlations between temperature, humidity, incident UV light and the photocatalytic activity of TiO2films using a rationale approach / Cedillo Gonzalez, Erika Iveth; Mugoni, Consuelo; Montorsi, Monia; Siligardi, Cristina. - In: APPLIED SURFACE SCIENCE. - ISSN 0169-4332. - 378:(2016), pp. 73-79. [10.1016/j.apsusc.2016.03.202]

Evaluation of the correlations between temperature, humidity, incident UV light and the photocatalytic activity of TiO2films using a rationale approach

CEDILLO GONZALEZ, ERIKA IVETH;Mugoni, Consuelo;Montorsi, Monia;Siligardi, Cristina
2016

Abstract

The effect of temperature, humidity and incident UV light on the photocatalytic activity of two TiO2filmswith different microstructures (dense and mesoporous) was explored in terms of stearic acid degradation.Previous works reported in the literature suggest that the activity of TiO2films does not only depend onsingle factors but also on interactions between them. Hence, the design of experiments (DoE) approachwas used in this work to plan the experiments in a systematic way, simultaneously considering severalvariables. This approach provided an efficient working strategy to explore both individual and interactioneffects on the photocatalytic activity of the films. The statistical evidence found here revealed that singlefactors temperature and mesoporous microstructure have the strongest positive effect on the efficiencyof the films. In the case of temperature, this was explained by easier degradation and/or desorption ofreaction intermediates. On the other hand, the positive effect of the mesoporous microstructure wascorrelated with its large surface area. An interaction factor between temperature and incident UV lightalso affects the activity of the films. Results suggest that this phenomenon depends of the degree of filmhydration before the deposition of SA.
378
73
79
Evaluation of the correlations between temperature, humidity, incident UV light and the photocatalytic activity of TiO2films using a rationale approach / Cedillo Gonzalez, Erika Iveth; Mugoni, Consuelo; Montorsi, Monia; Siligardi, Cristina. - In: APPLIED SURFACE SCIENCE. - ISSN 0169-4332. - 378:(2016), pp. 73-79. [10.1016/j.apsusc.2016.03.202]
CEDILLO GONZALEZ, ERIKA IVETH; Mugoni, Consuelo; Montorsi, Monia; Siligardi, Cristina
File in questo prodotto:
File Dimensione Formato  
Appl Surf Scie 2016.pdf

non disponibili

Tipologia: Versione dell'editore (versione pubblicata)
Dimensione 1.82 MB
Formato Adobe PDF
1.82 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1119331
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 11
  • ???jsp.display-item.citation.isi??? 9
social impact